New Harmonic Detection of Electric Propulsion Ship based on Improved DOGI-PLL

Yuanrui Zhang ； Weifeng Shi ； Haiming Guo ； Yi Ding

《International Core Journal of Engineering》 7卷6期 (2021/06) Pp. 620-631

https://doi.org/10.6919/ICJE.202106_7(6).0073

摘要

Due to the use of nonlinear high-power power electronic equipment such as frequency converter, the harmonic content of marine electric propulsion system is higher. In order to ensure the APF works normally under the condition of three-phase unbalance, grid distortion or harmonic pollution, PLL with high performance needs to detect the phase and frequency of the positive sequence component of the voltage base frequency of the power grid quickly and accurately. Traditional p-q and ip-iq detection algorithms based on instantaneous reactive power theory, The harmonic suppression ability of PLL based on synchronous reference frame (SFR-PLL) is poor, which can not meet the requirements. A software phase locked loop algorithm with double generalized second order integrators (DSOGI-PLL) is proposed. The simulation results show that the method can avoid the influence of negative sequence component in voltage and has strong tracking effect on harmonic detection.

關鍵字

Marine Electric Propulsion System ； Harmonic ； PLL ； APF ； Second Order Generalized Integrator

參考文獻

D. Velasco C. Trujillo G. Garcera and E. Figueres "An active anti-islanding method based on phase- PLL perturbation" IEEE Trans. Power Electron. vol. 26 no. 4 pp. 1056-1066 Apr. 2015.

S. Golestan M. Monfared F. Freijedo and J. Guerrero "Design and tuning of a modified power-based PLL for single-phase grid-connected power conditioning systems" IEEE Trans. Power Electron. vol. 27 no. 8 pp. 3639-3650 Aug. 2017.

M. Karimi-Ghartemani, "A Unifying Approach to Single-Phase Synchronous Reference Frame PLLs," in IEEE Transactions on Power Electronics, vol. 28, no. 10, pp. 4550-4556, Oct. 2013, doi: 10.1109/ TPEL. 2016.2235185.

T. Thacker D. Boroyevich R. Burgos and F. Wang "Phase-locked loop noise reduction via phase detector implementation for single-phase systems" IEEE Trans. Ind. Electron. vol. 58 no. 6 pp. 2482-2490 Jun. 2013.

S.-H. Hwang L. Liu and J.-M. Kim "DC offset error compensation for synchronous reference frame PLL in single-phase grid-connected converters" IEEE Trans. Power Electron. vol. 27 no. 8 pp. 3467-3471 Aug. 2012.